Complex editing (cropping, background-editing, resizing, standardising etc.) of many product photos

I have approximately 200 product photos of 4 different products (50 of each product, but in different colours etc.) I would like for the images to be standardised, with a pixel tolerance of 3px. This means that if you were to flick through the pictures quickly, each product will not appear to jump as you change the product's colour. There are around 10 circular points on the product that you should focus on - these should remain in the same place and at the same size across each 50 photos. These points change places for the different four products, and as such you will have to refocus the points every 50 photos or so. The final images must be: - 500px by 500px - provided in both .jpg AND .psd - White background (~90% have white background already) Once the 10 points are all identical, I would then like for these points to be ACCURATELY covered with a white circle. This white circle should be in the same position across all 50 photos (the initial standardising makes this very easy). Images will be placed ON TOP OF these white circles by the browser, and so it is CRUCIAL there Y and X positions are correct (with a different of no more than 3px). Please refer to the image for an example. (NOTE: Image does not demonstrate the standardising, as it has not been compared to the other images). The best X and Y co-ordinates of the 8-10 points of interest should be determined by the successful candidate, however what the points of interest actually are should be the buttons (as demonstrated in the image).